18-letter words containing q, l
- silvery cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
- super royal quarto — a book size, 101⁄4 by 131⁄2 inches
- tranquillizer dart — a dart filled with a tranquillizer that is shot from a gun in order to temporarily sedate an animal so that it may be handled safely
- traveller's cheque — Traveller's cheques are cheques that you buy at a bank and take with you when you travel, for example so that you can exchange them for the currency of the country that you are in.
- ultralow frequency — an electromagnetic wave with a frequency between 300 and 3000 hertz. Abbreviation: ULF, ulf.
- very low frequency — any frequency between 3 and 30 kilohertz. Abbreviation: VLF.